Re: [ARSCLIST] Acetate tape discolours tape box

["Richard L. Hess" <arclists@xxxxxxxxxxxxxxx>]

At 03:18 PM 10/18/2006, Bev Lambert wrote:
> You are right. IPI only makes claims for the use of AD strips on acetate
> base FILM.
> Joe Iraci and his colleagues at CCI would be able to tell you more
> about the audio media.  It seems tape has had more of the SSS -sticky
> shed syndrome than VS. I got a bit carried away with the acetic acid
> detection...Bev Lambert

Hi, Bev,

Joe and I hope next year to work on a project that he had already 
proposed and then I proposed expanding it to test freezing of tape. 
While he is aware of the VS issue in tape, I don't think Joe has done 
any studies specifically for that. In fact, I'm not sure there are 
any studies which is why I'm pushing here and there trying to see 
what the real answers are. Many of the reports of white "exudate" 
when tapes were frozen at high altitudes (which could not be 
duplicated in a climate chamber with the same alleged parameters--at 
least I'm not aware of any duplication) were with PET-based tape and 
not acetate based tape, but the storage recommendations are 
broad-brush. I think we may need to segregate tapes, but also, 
theoretically, SSS can be retarded by dry storage (I'm not sure if 
cold helps or not).

However, I've been seeing tapes that do not respond to baking and I'm 
calling that SBS - Soft Binder Syndrome. Fortunately at least two of 
these tape types play well at 4C - put the player in the fridge, shut 
the door, let everything equalize, press play.

Cheers,

Richard




Richard L. Hess                   email: richard@xxxxxxxxxxxxxxx
Aurora, Ontario, Canada       (905) 713 6733     1-877-TAPE-FIX
Detailed contact information: http://www.richardhess.com/tape/contact.htm
Quality tape transfers -- even from hard-to-play tapes.